Data MaskingData Masking API

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avg: 156ms|p50: 150ms|p75: 160ms|p90: 171ms|p99: 193ms

Overview

To use Data Masking, you need an API key. You can get one by creating a free account and visiting your dashboard.

POST Endpoint

URL
https://api.apiverve.com/v1/datamasking

Example

How to call the Data Masking API in different programming languages.

cURL Request
curl -X POST \
  "https://api.apiverve.com/v1/datamasking" \
  -H "X-API-Key: your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
  "text": "Contact John Doe at [email protected] or call 555-123-4567. His SSN is 123-45-6789."
}'
JavaScript (Fetch API)
const response = await fetch('https://api.apiverve.com/v1/datamasking', {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    "text": "Contact John Doe at [email protected] or call 555-123-4567. His SSN is 123-45-6789."
})
});

const data = await response.json();
console.log(data);
Python (Requests)
import requests

headers = {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
}

payload = {
    "text": "Contact John Doe at [email protected] or call 555-123-4567. His SSN is 123-45-6789."
}

response = requests.post('https://api.apiverve.com/v1/datamasking', headers=headers, json=payload)

data = response.json()
print(data)
Go (net/http)
package main

import (
    "fmt"
    "io"
    "net/http"
    "bytes"
    "encoding/json"
)

func main() {
    payload := map[string]interface{}{
        "text": "Contact John Doe at [email protected] or call 555-123-4567. His SSN is 123-45-6789."
    }

    jsonPayload, _ := json.Marshal(payload)
    req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/datamasking", bytes.NewBuffer(jsonPayload))

    req.Header.Set("X-API-Key", "your_api_key_here")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}
Example Response
{
  "status": "ok",
  "error": null,
  "data": {
    "masked": "Contact John Doe at [EMAIL] or call [PHONE]. His SSN is [SSN].",
    "detected": {
      "email": 1,
      "phone": 1,
      "ssn": 1,
      "credit_card": 0,
      "ip_address": 0,
      "url": 0,
      "date": 0
    }
  }
}

Authentication

The Data Masking API requires authentication via API key. Include your API key in the request header:

Required Header
X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

Test the Data Masking API directly in your browser with live requests and responses.

Parameters

The following parameters are available for the Data Masking API:

Some Data Masking parameters marked with Premium are available exclusively on paid plans.View pricing

Mask Sensitive Data

ParameterTypeRequiredDescriptionDefaultExample
textstringrequired
The text containing sensitive data to mask
-Contact John at [email protected] or call 555-123-4567
typesPremiumarrayoptional
Array of data types to mask (default: all types)
["email","phone","ssn","credit_card","ip_address","url","date"]["email","phone","ssn","credit_card","ip_address","url","date"]

Response

The Data Masking API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.

Other Response Formats

XML Response
200 OK
<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
  <data>
    <masked>Contact John Doe at [EMAIL] or call [PHONE]. His SSN is [SSN].</masked>
    <detected>
      <email>1</email>
      <phone>1</phone>
      <ssn>1</ssn>
      <credit_card>0</credit_card>
      <ip_address>0</ip_address>
      <url>0</url>
      <date>0</date>
    </detected>
  </data>
</response>
YAML Response
200 OK
status: ok
error: null
data:
  masked: Contact John Doe at [EMAIL] or call [PHONE]. His SSN is [SSN].
  detected:
    email: 1
    phone: 1
    ssn: 1
    credit_card: 0
    ip_address: 0
    url: 0
    date: 0
CSV Response
200 OK
keyvalue
maskedContact John Doe at [EMAIL] or call [PHONE]. His SSN is [SSN].
detected{email:1,phone:1,ssn:1,credit_card:0,ip_address:0,url:0,date:0}

Response Structure

All API responses follow a consistent structure with the following fields:

FieldTypeDescriptionExample
statusstringIndicates whether the request was successful ("ok") or failed ("error")ok
errorstring | nullContains error message if status is "error", otherwise nullnull
dataobject | nullContains the API response data if successful, otherwise null{...}

Learn more about response formats →

Response Data Fields

When the request is successful, the data object contains the following fields:

FieldTypeSample ValueDescription
maskedstring"Contact John Doe at [EMAIL] or call [PHONE]. His SSN is [SSN]."
-
detectedobject{...}
-
â”” emailnumber1
-
â”” phonenumber1
-
â”” ssnnumber1
-
â”” credit_cardnumber0
-
â”” ip_addressnumber0
-
â”” urlnumber0
-
â”” datenumber0
-

Headers

Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →

GraphQL AccessALPHA

Access Data Masking through GraphQL to combine it with other API calls in a single request. Query only the data masking data you need with precise field selection, and orchestrate complex data fetching workflows.

Test Data Masking in the GraphQL Explorer to confirm availability and experiment with queries.

Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.

GraphQL Endpoint
POST https://api.apiverve.com/v1/graphql
GraphQL Query Example
query {
  datamasking(
    input: {
      text: "Contact John Doe at [email protected] or call 555-123-4567. His SSN is 123-45-6789."
    }
  ) {
    masked
    detected {
      email
      phone
      ssn
      credit_card
      ip_address
      url
      date
    }
  }
}

Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.

CORS Support

The Data Masking API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →

Rate Limiting

Data Masking requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →

Error Codes

The Data Masking API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →

SDKs for Data Masking

Official Data Masking packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →

No-Code Integrations

Data Masking works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →

Frequently Asked Questions

How do I get an API key for Data Masking?
Sign up for a free account at dashboard.apiverve.com. Your API key will be automatically generated and available in your dashboard. The same key works for Data Masking and all other APIVerve APIs. The free plan includes 1,000 credits plus a 500 credit bonus.
How many credits does Data Masking cost?

Each successful Data Masking API call consumes credits based on plan tier. Check the pricing section above for the exact credit cost. Failed requests and errors don't consume credits, so you only pay for successful data masking lookups.

Can I use Data Masking in production?

The free plan is for testing and development only. For production use of Data Masking, upgrade to a paid plan (Starter, Pro, or Mega) which includes commercial use rights, no attribution requirements, and guaranteed uptime SLAs. All paid plans are production-ready.

Can I use Data Masking from a browser?
Yes! The Data Masking API supports CORS with wildcard configuration, so you can call it directly from browser-based JavaScript without needing a proxy server. See the CORS section above for details.
What happens if I exceed my Data Masking credit limit?

When you reach your monthly credit limit, Data Masking API requests will return an error until you upgrade your plan or wait for the next billing cycle. You'll receive notifications at 80% and 95% usage to give you time to upgrade if needed.

What's Next?

Continue your journey with these recommended resources

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